Bleaches are substances that whiten textiles and paper by chemical reaction. measure, the tank cars have shutoff valves that work in conjunction with a chlorine detection system. 16 Oct. 2020 . In recent years, bleach has been promoted by community health activists as a low-cost method of disinfecting the needles of intravenous drug users. It is commonly referred to as soda ash because it was originall…, Background or undertake that the information provided is correct, accurate or current. Chlorine, sodium hypochlorite, calcium hypochlorite, and hydrogen peroxide are commonly used as bleaches. By the 1950s, chlorine dioxide had become the principal pulp bleaching agent. By 1930, the prices of peroxides had dropped sufficiently to allow the use of hydrogen peroxide in the bleaching of cotton , wool, and silk. The Gale Encyclopedia of Science. The more common form of household bleach in the U.S. is chlorine bleach. In the early 1800s wood came into use as a source of paper and calcium hypochlorite was used as the bleaching agent. ." Teflon is the registered trade name of the highly useful plastic material polytetrafluoroethylene (PTFE). It was first used to sanitize drinking water in New York City's Croton Reservoir in 1895, and is approved by the government for sanitizing equipment in the food industry. The bleaching powder consisted of potash (soda ash) which had absorbed chlorine gas. Wear gloves such as household rubber or neoprene gloves (or other types as recommended by the manufacturer). In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates. 905-572-2981Toll free 1-800-668-4284(in Canada and the United States). © 2019 Encyclopedia.com | All rights reserved. 5 Often this cooled bleach is settled or filtered to remove impurities that can discolor the bleach or catalyze its decomposition. On arrival at the plant, the liquid chlorine is pumped from the tank cars into holding vat.. As a safety ∎  clean and sterilize: a new formula to bleach and brighten clothing ∎ fig. ." There are two types of bleaching agents: chlorine-based bleaches, such as sodium hypochlorite, and peroxygen bleaching agents such as hydrogen peroxide and sodium perborate. Then, copy and paste the text into your bibliography or works cited list. Bleach also whitens or lightens the color of certain materials. This turns it into bleach, which is incorporated into the manufacturing process. Encyclopedia.com. . This type of sun bleaching typically took several weeks. Grime, Keith and Allen Clauss. The effects of exposure to bleach will vary depending on the part of the body it affects, the concentration of the bleach, the duration of the exposure, and the amount. After World War I chlorine bleaching came into use in paper production because compressed chlorine gas became available. Retrieved October 16, 2020 from Encyclopedia.com: https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/bleach-0. —A peroxygen bleaching agent first used in Europe in the early 1900s. The diluted caustic soda is cooled before it is reacted.

Following World War I the technology for shipping liquid chlorine was developed. Anyone who has exposure to chloramine should therefore speak to a doctor. Brennan, Carol "Bleach By the 1950s, chlorine dioxide had become the principal pulp-bleaching agent. How Products Are Made. When the chlorine is manufactured outside the reactor facility, it travels in liquid form in specially designed railroad tank cars with double walls that will not rupture in the event of a derailment. The fabrics were then spread out on the grass for weeks at a time. 16 Oct. 2020 . Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites: http://www.chicagomanualofstyle.org/tools_citationguide.html. It can also corrode (“eat”) metals. We expect this update to take about an hour. Encyclopedia.com. By 1940, 65% of all cotton bleaching was done with hydrogen peroxide. ." It is not usually toxic to the skin itself, but it can irritate the skin, eyes, and other parts of the body. The Concise Oxford Dictionary of English Etymology. "Resurgence in Demand Reviving Market for Sodium Chlorite."

This discovery enabled the mass production of sodium hypochlorite, or chlorine, bleach. These reactions usually involve processes that degrade color . Today, bleach is found in nearly every household. Use protective clothing when necessary. Bleach works by the process of oxidation, or the alteration of a compound by the introduction of oxygen molecules.

Background ." Bleach is a chemical compound derived from natural sources used to whiten fabrics. Note that industrial uses can use concentrations of sodium hypochlorite at 30% or higher.

In the event of a chlorine leak, the detection system triggers a device on the tank that automatically stops the transmission of the liquid in 30 seconds. 6 The finished sodium hypochlorite bleach is shipped to a bottling plant or bottled on-site.

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